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Gre4nikov [31]
3 years ago
6

Can someone help me please?

Mathematics
1 answer:
AVprozaik [17]3 years ago
3 0

Step-by-step explanation:

Given that,

No. of heads = 40

No. of tails = 60

We know that,

Probability = (no. of favourable outcomes)/(total no. of outcomes)

Experimental probability of getting heads,

no. of favourable outcomes = 40

Total no. of outcomes = 40+60 = 100

So,

P=\dfrac{40}{100}

She has taken 60 on denominator. She should have taken 100 instead of 60.

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21 questions right
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8 0
3 years ago
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How do I solve for b.
Arturiano [62]
Since d is being subtracted from bc, we first add d to each side. Now we are left with a + d = bc.
Since b is being multiplied by c to be bc, we divide both sides by c.
We now have a/c + d = b
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6 0
4 years ago
How do i do these? (do at least one please)
meriva
32. 5^-2=1/25
5^-1=1/5
5^0=1
5^1=5
5^2=25
5^3=125

The domain are -2,-1,0,1,2,3,
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3 0
3 years ago
prove that ( sin theta cos theta = cot theta ) is not a trigonometric identity by producing a counterexample
user100 [1]

Answer:

To prove that ( sin θ cos θ = cot θ ) is not a trigonometric identity.

Assume θ with a value and substitute with it.

Let θ = 45°

So, L.H.S = sin θ cos θ = sin 45° cos 45° = (1/√2) * (1/√2) = 1/2

R.H.S = cot θ = cot 45 = 1

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8 0
3 years ago
Solve: 6-t/2t+9 = -2
dangina [55]
<span>6-t/2t+9 = -2
multiply both sides by 2t+9
which will give you 
6-t= -2(2t+9)
6-t = -4t + 18
now add 4t to both sides
6 -t + 4t = -4t -18 + 4t
6 + 3t = -18
6-6 + 3t = -18 -6
3t = -24
t = -24/3
t=  -8 (negative 8)




</span>
3 0
3 years ago
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